BIO

Dmytro Lesyk joined the Aeronautics Advanced Manufacturing Center (CFAA) of the University of the Basque Country (UPV/EHU) in October 2023 within the ADAGIO Post-doctoral Fellowship Programme under the Marie Sklodowska-Curie grant. His research project is focused on the Laser 3D printing and post-processing of aircraft products: Verifying structural and surface integrity to increase the operating life of heat-resistant superalloy parts. Dr. Dmytro Lesyk is also an Associate Professor at the Laser Systems and Advanced Technologies Department of the National Technical University of Ukraine ''Igor Sikorsky Kyiv Polytechnic Institute'' since 2021. He holds a Bachelor’s degree in Mechanical Engineering in 2009 and a Master’s degree majoring in ''Advanced Technology for Materials Processing'' in 2011 from the Igor Sikorsky Kyiv Polytechnic Institute. In 2016, he obtained his PhD degree majoring in "Processes of Physic-Technical Treatment" at the home institution. PhD thesis titled "Enhancing the surface integrity of steel parts by combined laser-ultrasonic treatment". In 2013-2014, he underwent PhD Fellowship training at the University of the Basque Country under the supervision of Prof. Aitzol Lamikiz within the Erasmus Mundus EWENT Program. Dr. Dmytro Lesyk was awarded the DAAD Research Grant for Doctoral Candidates and Young Academics and Scientists, working at the Otto von Guericke University Magdeburg, Germany in 2018-2019. He also was a Visiting Researcher at the University of Idaho, USA within the Fulbright Research and Development Program in 2022-2023. In 2022-2023, he also recently underwent Post-doctoral Fellowship training at the West Pomeranian University of Technology, Poland within the Ulam NAWA program.

PROJECT

The project is focused on advanced laser powder bed fusion (LPBF) additive manufacturing of superalloys applied for the production of responsible heat-proof and corrosion-resistant components. The LPBF technology is considered a new solution with the aim of weight, cost, and time reductions for the aircraft manufacturing industry. On the one hand, the LPBF process is a good additive manufacturing technique for the production of monolithic 3D objects with very complex shapes not achievable through traditional methods. On the other hand, given the safety regulations for aircraft products, the poor surface integrity and structural defects in the printed parts may limit the wider application of the LPBF technique for critical applications despite their vast potential. Therefore, both the optimization of the LPBF parameters and the development of new combined/hybrid post-processing techniques are very relevant as they may improve the surface quality and material properties in the LPBF-printed Ni-based alloy parts. Enhancing the operational properties of the LPBF-fabricated Inconel 718 alloy by novel post-processing techniques is under special attention.

Results ≡

Publications:

1) Effects of Ni-based powder reuse on porosity, surface quality and reproducibility of thin-walled structures in Laser Powder Bed Fusion process / D.A. Lesyk, S. Martinez, А. Lamikiz // Procedia CIRP. – 2024. – Vol. 124C. – pp. 89–92, https://doi.org/10.1016/j.procir.2024.08.077

2) Laser-based additive manufacturing and mechanical surface post-processing: Comparison of barrel finishing, shot and ultrasonic peening for corrosion resistance improvement of superalloy / D.A. Lesyk, B.M. Mordyuk, S. Martinez, V.V. Dzhemelinskyi, D. Grzesiak, D. Grochala, А. Lamikiz // Lasers in Manufacturing and Materials Processing. – 2023. – Vol. 10. – pp. 702–734, https://doi.org/10.1007/s40516-023-00231-8

3) Surface morphology and microstructural features of LPBF-printed superalloy turbine blade subjected to HIP, heat treatment and shot peening / D.A. Lesyk, S. Martinez, B.N. Mordyuk, V.V. Dzhemelinskyi, А. Lamikiz // In: Ivanov, V. (eds) Advances in Design, Simulation and Manufacturing VII. DSMIE 2024. Lecture Notes in Mechanical Engineering. Springer, Cham. – 2024. – pp. 276–286, https://doi.org/10.1007/978-3-031-61797-3_23

4) Functionality-related performance of surface microrelief evaluation in ultrasonically and shot peened Inconel 718 alloy manufactured by laser powder bed fusion process / D.A. Lesyk, S. Martinez, B.N. Mordyuk, D. Grochala, A. Lamikiz // In: Karabegović, I. (eds) New Technologies, Development and Application VII. NT 2024. Lecture Notes in Networks and Systems, Vol. 1069. Springer, Cham. – 2024. – pp. 201–211, https://doi.org/10.1007/978-3-031-66268-3_18

Conference presentations:

1) Surface morphology and microstructural features of LPBF-printed superalloy turbine blade subjected to HIP, heat treatment and shot peening, 7th International Conference on Design, Simulation, Manufacturing: The Innovation Exchange (DSMIE 2024). – June 04-07, 2024 | Pilsen, Czech Republic

2) Functionality-related performance of surface microrelief evaluation in ultrasonically and shot peened Inconel 718 alloy manufactured by laser powder bed fusion process, 10th International Conference New Technologies, Development and Application (NT 2024). – June 20-22, 2024 | Sarajevo, Bosnia and Herzegovina

3) Strengthening of aerospace Inconel 718 alloy fabricated by LPBF: hardening mechanisms induced by HIP, heat treatments and surface peening treatment, 6th Grabchenko’s International Conference on Advanced Manufacturing Processes (InterPartner 2024) – September 10-13, 2024 | Odesa, Ukraine (online presentation)

4) Effects of Ni-based powder reuse on porosity, surface quality and reproducibility of thin-walled structures in laser powder bed fusion process, 13th CIRP Conference on Photonic Technologies (LANE 2024) – September 15-19, 2024 | Fuerth, Germany

Scientific highlights and achievements:

1) Ukrainian patent "Post-processing method of metal products from nickel-chromium heat-resistant alloys manufactured by additive technologies" / D.A. Lesyk, V.V. Dzhemelinskyi // a202005529; appl. 26.08.2020; publ. 23.10.2024, bull. №43.